The United States government is investigating Change Healthcare, a subsidiary of UnitedHealth Group, following what has been described as the "Biggest Cyber Attack On US Health Care System." This ransomware attack, attributed to a Russian-speaking ransomware group known as Blackcat, has significantly disrupted the American healthcare system, causing pharmacies across the nation to struggle with processing life-saving prescriptions with insurance coverage, among other setbacks. The incident, which involves the theft of data including sensitive medical records, has turned into a national crisis, prompting a response from various sectors. Health insurers and US officials are scheduled to meet to discuss assistance for cash-strapped medical practices, as the attack continues to hold up billions in payments. Hospitals, pharmacies, and medical groups have been left scrambling, with three-quarters of hospitals reporting a direct impact on their ability to provide care. Nearly 1,000 hospitals surveyed reported a 94% financial impact, and medical providers have filed class action lawsuits against Change Healthcare over the data breach. The federal Office of Civil Rights is also investigating the massive healthcare hack, highlighting the vulnerability of the entire U.S. healthcare sector. Senators are seeking answers from the Biden administration regarding the attack. Change Healthcare, acquired by UnitedHealth Group for $13B in 2022, built a natural monopoly in the market of claim processing.